Good afternoon doctors. when i urinate, i notice white pieces or white debris in and at the bottom of the toilet. what could these white pieces possibly be? also, the urine appears to be quite bubbly?

Persistent bubbles in the urine can signal a significant amount of protein in the urine, which usually indicates significant kidney disease. The nature of the observed debris can be assessed by a microscopic analysis portion of a urinalysis. See your doctor or schedule an evaluation by a urologist or nephrologist.

Sometimes phosphates in urine may do that. If the bubbles are not voided but only in the container then they are air trapped or caused by bacteria.